P'trik never stops travelling the Realms. Once P'trik meets a muse, he only ever meets them further down their timeline. But this does not mean that the same amount of time passes for him as it does them the next time they meet up. This means that even though he may not see someone else for 2 or 3 years, they may still be roughly the same age. The exceptions to this is Metis and Sami as their times are synchronized; when 2 years passes for P'trik, 2 years also pass for Metis and Sami; whenever they meet up the same amount of time as passed. Ori does not time travel.
Yes, time travel is confusing.
Basic timeline for P'trik:
Age 22: P'trik is found in the fields of Ylisse
23: P'trik and Cordelia are wed
28: Meets Amee on his way to Roseanne; discovers his family pre-amnesia but chooses to remain distant to them.
33: Battle of Occissa Nova
38-39: P'trik befriends Kilala, Unova, and Black, moving through the realms and back home, often getting lost.
40: Morgan is sent back in time, becomes amnesiac, P'trik and family are grief stricken; he encounters Anna!Morgan for the first time, as well as Sami and Metis. His guilt of losing P'trik!Morgan prompts him to take the other girls under his wing.
41: Older Morgan tells them her revelation.
42: Anna!Morgan comes to P'trik's Realm for the first time and leaves quickly (just over a day)
43: P'trik befriends Lori, Anna!Morgan returns with infantile Orilin
44: Severa moves to Wyvern Valley with Gerome; Lori moves into P'trik's home
45: Severa and Gerome are wed. Future!Aigis visits P'trik and Cordelia for the first time, trickster and hatless.
46: P'trik first meets Kaiser the Divine Dragon and begins regular sessions with him a month later
47: Caesicius, son of Gerome and Severa, is born.
48: Cereza, daughter of Gerome and Severa is born.
50: Miranda, daughter of Sami is born.
53: Aigis, daughter of Metis, is born. The tactician, Black, dies; P'trik attends the funeral.
57: Cordelia makes Aigis's trickster hat, tells her not to lose it.
58: Cordelia passes away, meets Bea 6 months later. Orilin 15 years old and spent almost her entire life gardening with Cordelia. She continues to live in P'trik's house. Aigis is 5, Caesicius and Cereza are 11 and 10 respectively. Miranda is age 8.
59: Bea and P'trik are wed. Caesicius is 12 and Cereza is now 11.
60: P'trik becomes Hubba. P'trik!Hubba becomes Guide to the Outrealms, Love Guru extraordinaire, and Official Keeper of the Einherjar. Many people come to him for readings.
64: Hubba hecks up as he time travels, loses the Einherjar to Aversa, and guides the Sheperds through the Outrealms. He spends the next year reliving the Einherjar Wars of his past.
65: Hubba progressively gets weaker, often writing to Kilala
66: Now barely able to walk, Hubba atrophies; he calls Kilala to come visit him and passes away surrounded by loved ones. Severa is now 42 and her two children are now 19 and 18, following in their parents’ footsteps. P’trik!Morgan, aged 56, and Future!Owain never marry but continue to explore the world. Orilin, 23, is well established in the marketplace for her home grown medicinal herbs and concoctions. Miranda is age 16 and Aigis is 13; the latter travels into the past to visit P’trik and Cordelia two years later.
[Kind of had to retcon somethings in P'trik's headcanon so that they work a little better or make sense in regards to some of the threads I've been doing and stories I want to write. Took over an hour and a half organizing everything and working with Snowi and Naomi to figure out some stuff.]